Well, the main thing it does, obviously, is provide blood to the arms, thus letting you to move your arms, supply energy for muscles, and supplies blood to the nerves so you can feel your arm.
The left ventricle.
Though both ventricles of the heart pump blood out of the heart and into the body, I assume you're talking about the chamber that pumps blood to the capillaries of the head and arms or abdominal organs and legs. This would be the left ventricle, which receives oxygenated blood from the left atrium and sends it through the aorta to supply the body's systems with oxygen.
The human heart has four chambers.The atria are the receiving chambers and the ventricles are the discharging chambers.The right ventricle discharges into the lungs to oxygenate the blood.The left ventricle discharges its blood toward the rest of the body via the aorta.
The descending aorta is divided into two portions, the thoracic and abdominal, in correspondence with the two great cavities of the trunk in which it is situated.The descending thoracic aorta is located in posterior mediastinum.
Pulmonary arteries carry the blood from the heart and into the lungs, the cartrid artery carries the blood from the heart to the head and arms. renal arteries carry blood to the liver.
The heart has four chambers to it, the top two which are pumping oxygenated blood out to the rest of the body, while the bottom two are "sucking" (if you will) the blood back into the heart so it can be re oxygenated.
Though both ventricles of the heart pump blood out of the heart and into the body, I assume you're talking about the chamber that pumps blood to the capillaries of the head and arms or abdominal organs and legs. This would be the left ventricle, which receives oxygenated blood from the left atrium and sends it through the aorta to supply the body's systems with oxygen.
the heart
The human heart has four chambers.The atria are the receiving chambers and the ventricles are the discharging chambers.The right ventricle discharges into the lungs to oxygenate the blood.The left ventricle discharges its blood toward the rest of the body via the aorta.
The descending aorta is divided into two portions, the thoracic and abdominal, in correspondence with the two great cavities of the trunk in which it is situated.The descending thoracic aorta is located in posterior mediastinum.
the heart
Depends on when you consider it a child. First it's a Zygote, a fertilized egg, and then a blastocyst. Medically it's not a child until it's born. But if we start with embryo you can read all about it in the link below. Someone wrote blood starts pumping and arms starts to develop but that is weeks later. Blood pumps through the body. or Rhythmic breathing movements
Superior Vena Cava takes blood from the head, neck and arms, and pumps it into the right atrium.
Muscular contraction in the extremities moves the blood through the veins, the valves only allow blood to move toward the heart.
The ascending aorta delivers oxygenated blood FROM the heart, TO the head and arms.
When a sympathetic response is triggered in the body the heart rate increases, and the strength of the contractions of the heart also increases. The airways dilate which increases airflow. Blood vessels constrict, and therefore blood pressure rises.
Carry oxygenated blood from the lungs to the left atrium so it can be transferred to the aorta which takes the blood to the head and arms.
The reason why is because when the heart pumps all that blood, it has to go somewhere. So it goes through your legs and arms and stays there I guess. So when you go upside down, the blood will go down and eventually go down into your brain. That's why it isn't good for someone to stay upside down for a long period of time.